package com.ys.code.generator.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipUtils {
	private ZipUtils() {
	}

	public static void doCompress(String srcFile, String zipFile) throws Exception {
		doCompress(new File(srcFile), new File(zipFile));
	}

	/**
	 * 文件压缩
	 * 
	 * @param srcFile
	 *            目录或者单个文件
	 * @param zipFile
	 *            压缩后的ZIP文件
	 */
	public static void doCompress(File srcFile, File zipFile) throws Exception {
		ZipOutputStream out = null;
		try {
			out = new ZipOutputStream(new FileOutputStream(zipFile));
			doCompress(srcFile, out);
		} catch (Exception e) {
			throw e;
		} finally {
			out.close();// 记得关闭资源
		}
	}

	public static void doCompress(String filelName, ZipOutputStream out) throws IOException {
		doCompress(new File(filelName), out);
	}

	public static void doCompress(File file, ZipOutputStream out) throws IOException {
		doCompress(file, out, "");
	}

	public static void doCompress(File inFile, ZipOutputStream out, String dir) throws IOException {
		if (inFile.isDirectory()) {
			File[] files = inFile.listFiles();
			if (files != null && files.length > 0) {
				for (File file : files) {
					String name = inFile.getName();
					if (!"".equals(dir)) {
						name = dir + "/" + name;
					}
					ZipUtils.doCompress(file, out, name);
				}
			}
		} else {
			ZipUtils.doZip(inFile, out, dir);
		}
	}

	public static void doZip(File inFile, ZipOutputStream out, String dir) throws IOException {
		String entryName = null;
		if (!"".equals(dir)) {
			entryName = dir + "/" + inFile.getName();
		} else {
			entryName = inFile.getName();
		}
		ZipEntry entry = new ZipEntry(entryName);
		out.putNextEntry(entry);

		int len = 0;
		byte[] buffer = new byte[1024];
		FileInputStream fis = new FileInputStream(inFile);
		while ((len = fis.read(buffer)) > 0) {
			out.write(buffer, 0, len);
			out.flush();
		}
		out.closeEntry();
		fis.close();
	}

	 public static void delAllFiles(File file,String singal){  
	        if(!file.exists()){  
	            System.out.println("不存在该路径: "+file);  
	            return;  
	        }  
	        if(singal==null||"".equals(singal)){  
	            singal="-";  
	        }             
	        System.out.println(singal+"目录 ["+file.getName()+"]中：");  
	        singal=singal+" -";  
	        File[] files=file.listFiles();  
	            if(files.length>0){    
	                for(File f:files){  
	                    if(f.isDirectory()){//如果是目录  
	                        delAllFiles(f, singal); //递归  
	                        System.out.println(singal+"目录 ["+f.getName()+"]已删除");     
	                        f.delete();     //删除该文件夹  
	                    }  
	                    else{  
	                        System.out.println(singal+" 文件《"+f.getName()+"》已删除");     
	                        f.delete();  
	                    }//else  
	                }//for  
	            }//if  
	            else{  
	                System.out.println("***该目录中无任何文件***");  
	            }         
	    }//static 
	
	
	
}
